Charlie Kirk, a 31-year-old conservative activist and media personality, was shot in the neck while speaking at an outdoor event at Utah Valley University and later died at a hospital, and within hours a stream of unverified theories began circulating online about the circumstances of the attack.

Witnesses said Kirk had just begun a question-and-answer session before hundreds of students and supporters when the shot was fired. Security personnel removed him from the stage and he was taken to Timpanogos Regional Hospital in Orem, where he was pronounced dead, according to law enforcement and hospital officials.

Within hours of the shooting, short videos, still images and eyewitness accounts spread across social media, prompting intense online scrutiny and a variety of speculative narratives. Law enforcement authorities urged the public to rely on official updates and cautioned that the claims being shared on platforms such as X were not verified.

One prominent line of speculation focused on an aircraft that several users said dropped off public tracking systems shortly after the shooting; some posts suggested the plane might have been connected to the suspect’s escape. The claim was shared widely and prompted some users to tag federal authorities in calls for investigation. Other social-media users, including one who identified himself as a former radar technician, said aircraft can disappear from public feeds for routine reasons, such as terrain blocking signals or a plane landing at a nearby regional airport.

Another viral post identified two men seen standing behind Kirk moments before the shot, saying their gestures looked like hand signals tied to the attack. In video clips, one man appears to adjust his hat while holding a phone, and the other moves his arms and looks around. Investigators have not named either man or said they are suspects, and officials cautioned against drawing conclusions from brief, grainy footage.

Separate posts alleged a second shooter was concealed on an upper floor overlooking the event, pointing to a dark shape partially obscured by potted plants on a balcony. The image circulated as evidence of a person ‘‘camouflaged’’ in foliage, but it was low resolution and investigators have not corroborated the claim.

Other users advanced technical and medical-sounding theories. One post suggested the visible impact to Kirk’s clothing looked more like an internal explosion than a gunshot wound; another alleged that a ring worn by Kirk appeared to switch fingers after he was struck, which some said indicated edited footage. Commenters on both posts offered counterarguments: some said the appearance of an internal explosion could be a result of camera angles and video compression, and others pointed to earlier footage showing Kirk handling the same ring as an explanation for the perceived change.

Officials investigating the shooting have repeatedly warned that rapid sharing of unverified images and clips can hinder inquiries and spread misinformation. Investigators have not indicated any verified link between the circulating social-media posts and the facts of the case.

The proliferation of such theories follows a familiar pattern after high-profile violent incidents, when limited initial information, graphic clips and social-media amplification create fertile ground for speculation. Authorities said they were continuing their inquiry and asked anyone with legitimate information to contact investigators, while urging the public to await confirmed findings before drawing conclusions.

The shooting has drawn attention and commentary from political figures and media outlets, and the spread of inconsistent and unverified claims on social platforms has raised questions about how quickly false or unsubstantiated narratives can gain traction after breaking news. Law enforcement updates and official statements remain the primary sources for verified details as the investigation continues.